I remember watching this demo being played in real time by one of the Sony Executives (Ken Kutaragi ) way back in the day. I remember really like the mixture of action and world building elements. I also found it amusing that a lot of the visuals of the game changed from Beta/tech demo to the final product. From Demo to final release, this game is clearly Sony's answer to Zelda. Hey, he even has pointed ears. I mean they're really trying for the Zelda vibe. But, the game is very fun.
Oh, did I mention that Dark Cloud 2 is way better than the first game? I can't count how many hours I've put into DC2. The fishing alone was fun.